Materials Data on MgU(PbO3)2 by Materials Project
Pb2MgUO6 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Mg2+ is bonded to six O2- atoms to form MgO6 octahedra that share corners with six equivalent UO6 octahedra. The corner-sharing octahedra tilt angles range from 18–24°. There are a spread of Mg–O bond distances ranging from 2.12–2.17 Å. U6+ is bonded to six O2- atoms to form UO6 octahedra that share corners with six equivalent MgO6 octahedra. The corner-sharing octahedra tilt angles range from 18–24°. There are four shorter (2.08 Å) and two longer (2.14 Å) U–O bond lengths. Pb2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Pb–O bond distances ranging from 2.52–2.76 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to one Mg2+, one U6+, and two equivalent Pb2+ atoms. In the second O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Mg2+, one U6+, and two equivalent Pb2+ atoms. In the third O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Mg2+, one U6+, and two equivalent Pb2+ atoms.
- Research Organization:
- LBNL Materials Project; Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
- Contributing Organization:
- The Materials Project; MIT; UC Berkeley; Duke; U Louvain
- DOE Contract Number:
- AC02-05CH11231
- OSTI ID:
- 1675746
- Report Number(s):
- mp-1189016
- Country of Publication:
- United States
- Language:
- English
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